details & specs

Winchester Ammunition continues to invest in its rimfire product line with the development of a new 22 LR round for use in Modern Sporting Rifles (MSR).

New for 2011, this bullet is designed and packaged specifically for use in the growing number of high-capacity MSR 22 LRs. The new M-22 features a 40-grain Plated Lead Round Nose bullet optimized for reliable feeding in high capacity magazines. In addition, the M-22 utilizes non-corrosive priming and clean burning powder that delivers an ultrafast 1255 fps velocity and exceptional accuracy.

I use this in my M&P 15-22. It feeds reliably and accurately. Shot over 500 rounds in one day with only one or two jams (which may have been human error...Read complete review

I use this in my M&P 15-22. It feeds reliably and accurately. Shot over 500 rounds in one day with only one or two jams (which may have been human error loading). Great price when on sale!

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Most Liked Negative Review

Terrible. 78% defects in first 500

Bullets are loose in the brass(?) casings. Inspected both circular/rotational and verticle movement. In first 500 round box 390 cartidges had bullets that were able to be rotated or moved up...Read complete review

Bullets are loose in the brass(?) casings. Inspected both circular/rotational and verticle movement. In first 500 round box 390 cartidges had bullets that were able to be rotated or moved up and down vertically in the casing! Poor product design, manufacturing, Quality control and new product introduction.

Up to now I had used only CCI Mini mags in my Chiappa 22 upper. They are a little tough to find so I picked up a box of this M-22 to try out. I shot about 400 rounds down range without any problems. It was accurate and reliable. Will definitely buy more.

These feed great in the BX-25's which have not been feeding bulk hollowpoints, nor CCI Mini-mags. They claim to be cleaner burning. There is no wax which is nice. I will be buying these again and again. There is an occasional dirty casing in every 200 or so.

Have used my first 1000 and only had one misfire, but a recock and even it fired, had no feed issues at all, and it can get me 6 bullseyes out of 10 rnds at 75 feet, with a S&W 22a, very good ammo, will buy it again, but you might want to look around, americas most hated big box store has it cheaper.